Eagle IntelliMap 502C iGPS Installation And Operation Instructions Manual page 19

CAUTION:
Failure to use the enclosed 3-amp fuse will void your warranty! For
a replacement, use a type 3AG 3-amp fuse.
This unit has reverse polarity protection. No damage will occur if the
power wires are reversed. However, the unit will not work until the
wires are attached correctly.
NMEA 0183
Com Port
Com port
data wires
(three)
Cable connections.
13
Rear view of unit
Power Connector
Power cable
3-amp fuse
12-volt battery